Filtration plant.



No. 866,346. V PATBNTED SEPT. 17, 19o?.

Y H. D. BLFRETH.

FILTRATION PLANT, LPPLIUTION FILED" MR. 1, 1907..

3 SHEETS-SHEET 1.

PATENTED SEPT. 17, 1907.

- AH. D. ELTRBTH.

FILTRATION PLANT.

APPLIUATION FILED HAR. 1. 41907.

8 SHEETS-SHEET 2.

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Nd. 866,346'. PATENTBD SEPT. 17, 1907.

H. n. ELPRBTH.

FILTRATION PLANT.

APPLIOATION FILED HAB. 1, 1907.

3 SHEETS-SHEET 3.

HAROLD D. ELFRETI-I, OF PIIILADELPIIIA, PENNSYLVANIA.

FILTRATION PLANT.

Specification of Letters Patent.

Patented Sept. 17, 1907.

Application filed March l, 1907. Serial No. 360,037-

To all whom it may concern:

Be it known that I, HAROLD D. Etrnnrn, a citizen oi the United States, residingl in the city and county of Philadelphia, State oi Pennsylvania, have invented a new` and useful Filtration Plant, of which the following is a specification.

My invention consists oi'a filtration plant embodying a sedimentation chamber, a filtering or number of liltei'iiig chambers, and a chamber for the reception of the clear or filtered Water therefrom, the Walls of the different chambers being common to all, thus avoiding the use ot' different chambers each of its own construction, such being at present the usual type ol plant and necessitating the construction of a separate building inclosing the different chambers and apparatus for their protection l'i'oni the weather, etc. My invention being thus cheaper to build, more compact` and occupying less space for the saine efliciency and capacity.

Figure l. represents a top or plan View oi a filtering plant embodyingr my invention. Fig. 2 represents a vertical section thereof on line x-x Fig. l. Fig. 3 represents a vertical section ol a modification thereof.

Similar letters oi reference indicate corresponding parts iii the figures.

Referring to the drawings: A designates a filtering plant composed ol the exterior Walls B, the inner Walls O, the base Bf, of the Walls B, and the bases C and C2, of the Walls C. These Walls and bases form the sedimentation chamber D, the chambers E forming the filter or filters and the chambers F for the reception of the purified or iiltered Water, it being noticed that the chambers D surround the chambersE and F, the outer Walls B thereof also acting as the Walls of a building inclosing said filtration plant. The chambers E are in communication With the chainbers D by means of the distributing main H Which receives the sedimented or partially sedimented Water from the chambers D, and distributes said Water to the filter chambers E through the pipes Hf and J, the same being suitably controlled by valves such as at K.

In the present case, there is shown a plurality of iilter chambersE, separated by the division Walls L, but this plurality is not an essential principle oi this plant as one or more chambers E by a suitable modiication of the piping system, distributing the sedimented or partially sedimented water would act as Well.

Connected with the bases C/ oi the chambers E, are the pipes M, and the collecting system G, which open or discharge into the chambers F, being provided with suitable valves as at N.

It will now be seen that the water is first admitted into the chambers D, Where being in a state of comparative quiet owing to its very slow passage through the chambers D, it is permitted to settle, the sediment thus being precipitated, as is evident, in said chamber, from which it may be removed i'i'oin time to time as desired. rlhe water, is thus partially purified by the time it has passed through the chambers D in its passage from the inlet L to the distributing main II, through which it passes and is distributed to the chainbeis E by means ol the aforementioned pipes H and J, such distribution being controlled by suitable valves such as at K. The Water passes through the chambers E, forming the lters, being thoroughly purified in such passage, and in this purified condition, it enters the chambers F, the valves N being duly opened. The purified or filtered Water noW occupies the chambers F, from Where it may be pumped or directed to a place oi use. It Will also be seen that the Walls C are common to the chambers D, E, and F, and the bases C are partitions or divisional Walls common to the chambers E and F. By these means the expense of the construction of a Iilter plant is correspondingly reduced, and the plant being of compact form occupies considerably less space than Where each chamber is separately constructed, as such separate construction necessitates the iiiclosure of said separately constructed chambers by a building to protect them from the Weather, etc., which function of protection etc. is performed in my invention by the Walls B, and the superstructure Which they carry.

In Fig. 3, there is a reversal of the members of the plant, in that the filtering chambers E, and the chambers F for puried or iiltered Water, surround thesedimentation chamber D, the same certain Walls and bases remaining common to adjacent chambers Without producing different results from those in the previous case described.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is z- 1. In a filtering plant, a sedimentation chamber, a connecton therefrom to the Water supply ltering chambers, one of the said chambers being entirely surrounded by the other, and the division Walls of which are common to both chambers, chambers for the filtered Water beneath said filtering chambers, and a distributing main in communication With the sedimentation chamber and above the iilters in the filtering chambers.

2. In a iiltering plant, a sedimentation chamber, a connection therefrom to the Water supply filtering cliainbers, one of the said chambers being entirely surrounded by the other and the division Walls of which are common to both chambers; chambers for the filtered water beneath said filtering chambers, a distributing main in communication With the sedimentation chamber and above the lters in the iiltering chambers, distributing pipes in the purified water chamber and distributing systems in the bases of the filtering chambers.

A filtering plant comprising exterior and inner walls, a base for the exterior Walls, bases upon different levels,

for the outer Walls forming iiltering chambers above and chambers for purified Water beneath the latter and a sedimentation chamber, one entirely surrounding and inclosing the other, a connection from said sedimentation chamber to the Water supply and a distributing main for distributing the Water to the filtering chambers.

4. A ltering plant comprising exterior and inner Walls, a base for the exterior Walls, bases upon dierent levels, for the outer walls forming iltering chambers above and chambers for puried Water beneath the latter and a sedimentation chamber, one entirely surrounding and inclosing the other, a connection from said sedimentation chamber to the water supply, a distributing main for distributing the water to the filtering chambers, branches leading from said distributing main, and means for simultaneously controlling al1 of said branches,

5. A iiltering plant comprising exterior and inner walls, a base for the exterior walls, bases upon diierent levels, for the outer walls forming ltering chambers above and chambers for puriiied water beneath the latter and a sedimentation chamber, one entirely surrounding and inclosing the other, a connection from said sedimentation chamber to-the Water supply, a distributing main for distributing the Water to the filtering chambers, a collecting,- system intermediate the filtering and purified water chambers and pipes leading from said collecting system into the purified water chambers.

6. A filtering plant comprising exterior and inner Walls, a base for the exterior Walls, bases upon different levels, for the outer Walls forming filtering chambers above and chambers for purified Water beneath the latter and a sedimentation chamber, one entirely surrounding and inclosing the other, a connection from said sedimentation chamber to the Water supply, a distributing main for distributing the Water to the iiltering chambers, a collecting system intermediate the ltering and purified Water chambers, pipes leading from said collecting system into the puriiied water chambers, valves in said pipes and means for simultaneously controlling them.

HAROLD D. ELFRETH.

Witnesses:

.ToHN A. WmDnnsHmM, HARRY C. DAL'roN. 

